| In millions, except per share items | Aug-31-23 | May-31-23 | May-05-23 | Nov-30-22 | Aug-31-22 | May-31-22 | May-05-22 | Feb-28-22 |
| | 10-Q | 10-Q | 8-K | 10-Q | 10-Q | 10-Q | 8-K | 10-K |
| Net income | | | | -33.6 | -40.3 | -38.2 | | -28.0 |
| Depreciation and amortization [+] | | | | 10.9 | | | | 22.8 |
| Depreciation | | | | 16.4 | | | | 21.6 |
| Amortization of intangible assets | | | | 2.7 | | | | 5.4 |
| Stock-based compensation | | | | 4.8 | | | | 11.3 |
| Deferred taxes | | | | 0.1 | | | | 0.5 |
| Change in working capital [+] | | | | -23.1 | -10.6 | -4.2 | | -4.2 |
| Accounts receivable | | | | -29.5 | | | | 1.4 |
| Inventories | | | | -2.5 | | | | 5.2 |
| Other current assets | | | | -9.4 | | | | -0.8 |
| Accounts payable | | | | 20.8 | | | | -4.8 |
| Accrued expenses | | | | -0.4 | | | | 3.1 |
| Deferred revenues | | | | -9.7 | -8.0 | -16.9 | | -17.0 |
| Other | | | | | | | | 8.7 |
| Other operating activities | | | | 11.5 | -7.3 | -3.9 | | -6.3 |
| Cash from operations | | | | -29.4 | -40.3 | -19.8 | | -3.8 |
| |
| Capital expenditures | | | | -2.5 | -1.8 | -6.6 | | -13.3 |
| Purchases of property and equipment | | | | -2.5 | -1.8 | -6.6 | | -13.3 |
| Other cash from investing | | | | | -10.7 | -8.2 | | |
| Cash from investing | | | | -12.3 | -12.5 | -14.7 | | -7.6 |
| |
| Other cash from financing | | | | -0.6 | -0.6 | -2.3 | | -2.6 |
| Cash from financing | | | | -0.6 | -0.6 | -2.3 | | -2.6 |
| |
| Free cash flow | | | | -31.8 | -42.2 | -26.4 | | -17.1 |
| Per share (diluted) | | | | ($0.89) | ($1.18) | ($0.75) | | ($0.49) |